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37#ifndef _LINUX_NFSD_XDR4_H
38#define _LINUX_NFSD_XDR4_H
39
40#include "state.h"
41#include "nfsd.h"
42
43#define NFSD4_MAX_TAGLEN 128
44#define XDR_LEN(n) (((n) + 3) & ~3)
45
46#define CURRENT_STATE_ID_FLAG (1<<0)
47#define SAVED_STATE_ID_FLAG (1<<1)
48
49#define SET_STATE_ID(c, f) ((c)->sid_flags |= (f))
50#define HAS_STATE_ID(c, f) ((c)->sid_flags & (f))
51#define CLEAR_STATE_ID(c, f) ((c)->sid_flags &= ~(f))
52
53struct nfsd4_compound_state {
54 struct svc_fh current_fh;
55 struct svc_fh save_fh;
56 struct nfs4_stateowner *replay_owner;
57 struct nfs4_client *clp;
58
59 struct nfsd4_session *session;
60 struct nfsd4_slot *slot;
61 int data_offset;
62 size_t iovlen;
63 u32 minorversion;
64 __be32 status;
65 stateid_t current_stateid;
66 stateid_t save_stateid;
67
68 u32 sid_flags;
69};
70
71static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs)
72{
73 return cs->slot != NULL;
74}
75
76struct nfsd4_change_info {
77 u32 atomic;
78 bool change_supported;
79 u32 before_ctime_sec;
80 u32 before_ctime_nsec;
81 u64 before_change;
82 u32 after_ctime_sec;
83 u32 after_ctime_nsec;
84 u64 after_change;
85};
86
87struct nfsd4_access {
88 u32 ac_req_access;
89 u32 ac_supported;
90 u32 ac_resp_access;
91};
92
93struct nfsd4_close {
94 u32 cl_seqid;
95 stateid_t cl_stateid;
96};
97
98struct nfsd4_commit {
99 u64 co_offset;
100 u32 co_count;
101 nfs4_verifier co_verf;
102};
103
104struct nfsd4_create {
105 u32 cr_namelen;
106 char * cr_name;
107 u32 cr_type;
108 union {
109 struct {
110 u32 datalen;
111 char *data;
112 } link;
113 struct {
114 u32 specdata1;
115 u32 specdata2;
116 } dev;
117 } u;
118 u32 cr_bmval[3];
119 struct iattr cr_iattr;
120 struct nfsd4_change_info cr_cinfo;
121 struct nfs4_acl *cr_acl;
122 struct xdr_netobj cr_label;
123};
124#define cr_datalen u.link.datalen
125#define cr_data u.link.data
126#define cr_specdata1 u.dev.specdata1
127#define cr_specdata2 u.dev.specdata2
128
129struct nfsd4_delegreturn {
130 stateid_t dr_stateid;
131};
132
133struct nfsd4_getattr {
134 u32 ga_bmval[3];
135 struct svc_fh *ga_fhp;
136};
137
138struct nfsd4_link {
139 u32 li_namelen;
140 char * li_name;
141 struct nfsd4_change_info li_cinfo;
142};
143
144struct nfsd4_lock_denied {
145 clientid_t ld_clientid;
146 struct xdr_netobj ld_owner;
147 u64 ld_start;
148 u64 ld_length;
149 u32 ld_type;
150};
151
152struct nfsd4_lock {
153
154 u32 lk_type;
155 u32 lk_reclaim;
156 u64 lk_offset;
157 u64 lk_length;
158 u32 lk_is_new;
159 union {
160 struct {
161 u32 open_seqid;
162 stateid_t open_stateid;
163 u32 lock_seqid;
164 clientid_t clientid;
165 struct xdr_netobj owner;
166 } new;
167 struct {
168 stateid_t lock_stateid;
169 u32 lock_seqid;
170 } old;
171 } v;
172
173
174 union {
175 struct {
176 stateid_t stateid;
177 } ok;
178 struct nfsd4_lock_denied denied;
179 } u;
180};
181#define lk_new_open_seqid v.new.open_seqid
182#define lk_new_open_stateid v.new.open_stateid
183#define lk_new_lock_seqid v.new.lock_seqid
184#define lk_new_clientid v.new.clientid
185#define lk_new_owner v.new.owner
186#define lk_old_lock_stateid v.old.lock_stateid
187#define lk_old_lock_seqid v.old.lock_seqid
188
189#define lk_resp_stateid u.ok.stateid
190#define lk_denied u.denied
191
192
193struct nfsd4_lockt {
194 u32 lt_type;
195 clientid_t lt_clientid;
196 struct xdr_netobj lt_owner;
197 u64 lt_offset;
198 u64 lt_length;
199 struct nfsd4_lock_denied lt_denied;
200};
201
202
203struct nfsd4_locku {
204 u32 lu_type;
205 u32 lu_seqid;
206 stateid_t lu_stateid;
207 u64 lu_offset;
208 u64 lu_length;
209};
210
211
212struct nfsd4_lookup {
213 u32 lo_len;
214 char * lo_name;
215};
216
217struct nfsd4_putfh {
218 u32 pf_fhlen;
219 char *pf_fhval;
220};
221
222struct nfsd4_open {
223 u32 op_claim_type;
224 struct xdr_netobj op_fname;
225 u32 op_delegate_type;
226 stateid_t op_delegate_stateid;
227 u32 op_why_no_deleg;
228 u32 op_create;
229 u32 op_createmode;
230 u32 op_bmval[3];
231 struct iattr op_iattr;
232 nfs4_verifier op_verf __attribute__((aligned(32)));
233
234 clientid_t op_clientid;
235 struct xdr_netobj op_owner;
236 u32 op_seqid;
237 u32 op_share_access;
238 u32 op_share_deny;
239 u32 op_deleg_want;
240 stateid_t op_stateid;
241 __be32 op_xdr_error;
242 u32 op_recall;
243 struct nfsd4_change_info op_cinfo;
244 u32 op_rflags;
245 bool op_truncate;
246 bool op_created;
247 struct nfs4_openowner *op_openowner;
248 struct nfs4_file *op_file;
249 struct nfs4_ol_stateid *op_stp;
250 struct nfs4_clnt_odstate *op_odstate;
251 struct nfs4_acl *op_acl;
252 struct xdr_netobj op_label;
253};
254
255struct nfsd4_open_confirm {
256 stateid_t oc_req_stateid ;
257 u32 oc_seqid ;
258 stateid_t oc_resp_stateid ;
259};
260
261struct nfsd4_open_downgrade {
262 stateid_t od_stateid;
263 u32 od_seqid;
264 u32 od_share_access;
265 u32 od_deleg_want;
266 u32 od_share_deny;
267};
268
269
270struct nfsd4_read {
271 stateid_t rd_stateid;
272 u64 rd_offset;
273 u32 rd_length;
274 int rd_vlen;
275 struct file *rd_filp;
276
277 struct svc_rqst *rd_rqstp;
278 struct svc_fh * rd_fhp;
279};
280
281struct nfsd4_readdir {
282 u64 rd_cookie;
283 nfs4_verifier rd_verf;
284 u32 rd_dircount;
285 u32 rd_maxcount;
286 u32 rd_bmval[3];
287 struct svc_rqst *rd_rqstp;
288 struct svc_fh * rd_fhp;
289
290 struct readdir_cd common;
291 struct xdr_stream *xdr;
292 int cookie_offset;
293};
294
295struct nfsd4_release_lockowner {
296 clientid_t rl_clientid;
297 struct xdr_netobj rl_owner;
298};
299struct nfsd4_readlink {
300 struct svc_rqst *rl_rqstp;
301 struct svc_fh * rl_fhp;
302};
303
304struct nfsd4_remove {
305 u32 rm_namelen;
306 char * rm_name;
307 struct nfsd4_change_info rm_cinfo;
308};
309
310struct nfsd4_rename {
311 u32 rn_snamelen;
312 char * rn_sname;
313 u32 rn_tnamelen;
314 char * rn_tname;
315 struct nfsd4_change_info rn_sinfo;
316 struct nfsd4_change_info rn_tinfo;
317};
318
319struct nfsd4_secinfo {
320 u32 si_namelen;
321 char *si_name;
322 struct svc_export *si_exp;
323};
324
325struct nfsd4_secinfo_no_name {
326 u32 sin_style;
327 struct svc_export *sin_exp;
328};
329
330struct nfsd4_setattr {
331 stateid_t sa_stateid;
332 u32 sa_bmval[3];
333 struct iattr sa_iattr;
334 struct nfs4_acl *sa_acl;
335 struct xdr_netobj sa_label;
336};
337
338struct nfsd4_setclientid {
339 nfs4_verifier se_verf;
340 struct xdr_netobj se_name;
341 u32 se_callback_prog;
342 u32 se_callback_netid_len;
343 char * se_callback_netid_val;
344 u32 se_callback_addr_len;
345 char * se_callback_addr_val;
346 u32 se_callback_ident;
347 clientid_t se_clientid;
348 nfs4_verifier se_confirm;
349};
350
351struct nfsd4_setclientid_confirm {
352 clientid_t sc_clientid;
353 nfs4_verifier sc_confirm;
354};
355
356struct nfsd4_saved_compoundargs {
357 __be32 *p;
358 __be32 *end;
359 int pagelen;
360 struct page **pagelist;
361};
362
363struct nfsd4_test_stateid_id {
364 __be32 ts_id_status;
365 stateid_t ts_id_stateid;
366 struct list_head ts_id_list;
367};
368
369struct nfsd4_test_stateid {
370 u32 ts_num_ids;
371 struct list_head ts_stateid_list;
372};
373
374struct nfsd4_free_stateid {
375 stateid_t fr_stateid;
376};
377
378
379struct nfsd4_verify {
380 u32 ve_bmval[3];
381 u32 ve_attrlen;
382 char * ve_attrval;
383};
384
385struct nfsd4_write {
386 stateid_t wr_stateid;
387 u64 wr_offset;
388 u32 wr_stable_how;
389 u32 wr_buflen;
390 struct kvec wr_head;
391 struct page ** wr_pagelist;
392
393 u32 wr_bytes_written;
394 u32 wr_how_written;
395 nfs4_verifier wr_verifier;
396};
397
398struct nfsd4_exchange_id {
399 nfs4_verifier verifier;
400 struct xdr_netobj clname;
401 u32 flags;
402 clientid_t clientid;
403 u32 seqid;
404 int spa_how;
405};
406
407struct nfsd4_sequence {
408 struct nfs4_sessionid sessionid;
409 u32 seqid;
410 u32 slotid;
411 u32 maxslots;
412 u32 cachethis;
413#if 0
414 u32 target_maxslots;
415#endif
416 u32 status_flags;
417};
418
419struct nfsd4_destroy_session {
420 struct nfs4_sessionid sessionid;
421};
422
423struct nfsd4_destroy_clientid {
424 clientid_t clientid;
425};
426
427struct nfsd4_reclaim_complete {
428 u32 rca_one_fs;
429};
430
431struct nfsd4_deviceid {
432 u64 fsid_idx;
433 u32 generation;
434 u32 pad;
435};
436
437struct nfsd4_layout_seg {
438 u32 iomode;
439 u64 offset;
440 u64 length;
441};
442
443struct nfsd4_getdeviceinfo {
444 struct nfsd4_deviceid gd_devid;
445 u32 gd_layout_type;
446 u32 gd_maxcount;
447 u32 gd_notify_types;
448 void *gd_device;
449};
450
451struct nfsd4_layoutget {
452 u64 lg_minlength;
453 u32 lg_signal;
454 u32 lg_layout_type;
455 u32 lg_maxcount;
456 stateid_t lg_sid;
457 struct nfsd4_layout_seg lg_seg;
458 void *lg_content;
459};
460
461struct nfsd4_layoutcommit {
462 stateid_t lc_sid;
463 struct nfsd4_layout_seg lc_seg;
464 u32 lc_reclaim;
465 u32 lc_newoffset;
466 u64 lc_last_wr;
467 struct timespec lc_mtime;
468 u32 lc_layout_type;
469 u32 lc_up_len;
470 void *lc_up_layout;
471 u32 lc_size_chg;
472 u64 lc_newsize;
473};
474
475struct nfsd4_layoutreturn {
476 u32 lr_return_type;
477 u32 lr_layout_type;
478 struct nfsd4_layout_seg lr_seg;
479 u32 lr_reclaim;
480 u32 lrf_body_len;
481 void *lrf_body;
482 stateid_t lr_sid;
483 u32 lrs_present;
484};
485
486struct nfsd4_fallocate {
487
488 stateid_t falloc_stateid;
489 loff_t falloc_offset;
490 u64 falloc_length;
491};
492
493struct nfsd4_seek {
494
495 stateid_t seek_stateid;
496 loff_t seek_offset;
497 u32 seek_whence;
498
499
500 u32 seek_eof;
501 loff_t seek_pos;
502};
503
504struct nfsd4_op {
505 int opnum;
506 __be32 status;
507 union {
508 struct nfsd4_access access;
509 struct nfsd4_close close;
510 struct nfsd4_commit commit;
511 struct nfsd4_create create;
512 struct nfsd4_delegreturn delegreturn;
513 struct nfsd4_getattr getattr;
514 struct svc_fh * getfh;
515 struct nfsd4_link link;
516 struct nfsd4_lock lock;
517 struct nfsd4_lockt lockt;
518 struct nfsd4_locku locku;
519 struct nfsd4_lookup lookup;
520 struct nfsd4_verify nverify;
521 struct nfsd4_open open;
522 struct nfsd4_open_confirm open_confirm;
523 struct nfsd4_open_downgrade open_downgrade;
524 struct nfsd4_putfh putfh;
525 struct nfsd4_read read;
526 struct nfsd4_readdir readdir;
527 struct nfsd4_readlink readlink;
528 struct nfsd4_remove remove;
529 struct nfsd4_rename rename;
530 clientid_t renew;
531 struct nfsd4_secinfo secinfo;
532 struct nfsd4_setattr setattr;
533 struct nfsd4_setclientid setclientid;
534 struct nfsd4_setclientid_confirm setclientid_confirm;
535 struct nfsd4_verify verify;
536 struct nfsd4_write write;
537 struct nfsd4_release_lockowner release_lockowner;
538
539
540 struct nfsd4_exchange_id exchange_id;
541 struct nfsd4_backchannel_ctl backchannel_ctl;
542 struct nfsd4_bind_conn_to_session bind_conn_to_session;
543 struct nfsd4_create_session create_session;
544 struct nfsd4_destroy_session destroy_session;
545 struct nfsd4_sequence sequence;
546 struct nfsd4_reclaim_complete reclaim_complete;
547 struct nfsd4_test_stateid test_stateid;
548 struct nfsd4_free_stateid free_stateid;
549 struct nfsd4_getdeviceinfo getdeviceinfo;
550 struct nfsd4_layoutget layoutget;
551 struct nfsd4_layoutcommit layoutcommit;
552 struct nfsd4_layoutreturn layoutreturn;
553
554
555 struct nfsd4_fallocate allocate;
556 struct nfsd4_fallocate deallocate;
557 struct nfsd4_seek seek;
558 } u;
559 struct nfs4_replay * replay;
560};
561
562bool nfsd4_cache_this_op(struct nfsd4_op *);
563
564
565
566
567struct svcxdr_tmpbuf {
568 struct svcxdr_tmpbuf *next;
569 char buf[];
570};
571
572struct nfsd4_compoundargs {
573
574 __be32 * p;
575 __be32 * end;
576 struct page ** pagelist;
577 int pagelen;
578 __be32 tmp[8];
579 __be32 * tmpp;
580 struct svcxdr_tmpbuf *to_free;
581
582 struct svc_rqst *rqstp;
583
584 u32 taglen;
585 char * tag;
586 u32 minorversion;
587 u32 opcnt;
588 struct nfsd4_op *ops;
589 struct nfsd4_op iops[8];
590 int cachetype;
591};
592
593struct nfsd4_compoundres {
594
595 struct xdr_stream xdr;
596 struct svc_rqst * rqstp;
597
598 u32 taglen;
599 char * tag;
600 u32 opcnt;
601 __be32 * tagp;
602 struct nfsd4_compound_state cstate;
603};
604
605static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
606{
607 struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
608 return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
609}
610
611static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
612{
613 return !(resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
614 || nfsd4_is_solo_sequence(resp);
615}
616
617static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
618{
619 struct nfsd4_compoundres *resp = rqstp->rq_resp;
620 struct nfsd4_compoundargs *argp = rqstp->rq_argp;
621
622 return argp->opcnt == resp->opcnt;
623}
624
625int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op);
626void warn_on_nonidempotent_op(struct nfsd4_op *op);
627
628#define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs)
629
630static inline void
631set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
632{
633 BUG_ON(!fhp->fh_pre_saved);
634 cinfo->atomic = fhp->fh_post_saved;
635 cinfo->change_supported = IS_I_VERSION(d_inode(fhp->fh_dentry));
636
637 cinfo->before_change = fhp->fh_pre_change;
638 cinfo->after_change = fhp->fh_post_change;
639 cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
640 cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
641 cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
642 cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
643
644}
645
646int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
647int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
648 struct nfsd4_compoundargs *);
649int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
650 struct nfsd4_compoundres *);
651__be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
652void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
653void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
654__be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
655 struct svc_fh *fhp, struct svc_export *exp,
656 struct dentry *dentry,
657 u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
658extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
659 struct nfsd4_compound_state *,
660 struct nfsd4_setclientid *setclid);
661extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
662 struct nfsd4_compound_state *,
663 struct nfsd4_setclientid_confirm *setclientid_confirm);
664extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
665 struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
666extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
667extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
668extern __be32 nfsd4_create_session(struct svc_rqst *,
669 struct nfsd4_compound_state *,
670 struct nfsd4_create_session *);
671extern __be32 nfsd4_sequence(struct svc_rqst *,
672 struct nfsd4_compound_state *,
673 struct nfsd4_sequence *);
674extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
675extern __be32 nfsd4_destroy_session(struct svc_rqst *,
676 struct nfsd4_compound_state *,
677 struct nfsd4_destroy_session *);
678extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
679__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
680extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
681 struct nfsd4_open *open, struct nfsd_net *nn);
682extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
683 struct svc_fh *current_fh, struct nfsd4_open *open);
684extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
685extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
686 struct nfsd4_open *open);
687extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
688 struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
689extern __be32 nfsd4_close(struct svc_rqst *rqstp,
690 struct nfsd4_compound_state *,
691 struct nfsd4_close *close);
692extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
693 struct nfsd4_compound_state *,
694 struct nfsd4_open_downgrade *od);
695extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
696 struct nfsd4_lock *lock);
697extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
698 struct nfsd4_compound_state *,
699 struct nfsd4_lockt *lockt);
700extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
701 struct nfsd4_compound_state *,
702 struct nfsd4_locku *locku);
703extern __be32
704nfsd4_release_lockowner(struct svc_rqst *rqstp,
705 struct nfsd4_compound_state *,
706 struct nfsd4_release_lockowner *rlockowner);
707extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
708extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
709 struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
710extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
711 struct nfsd4_compound_state *, clientid_t *clid);
712extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
713 struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
714extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
715 struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
716extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
717
718#endif
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